I am a casual Minecraft player, although I am amazing at redstone, especially when building Adventure Maps, Parkour Maps, and Puzzle Maps. I have not yet posted a map, but the first being Parkour: PURE. I have also started production on a texture pack called "SketchCraft" and created a Custom Splashes Mod, I am just getting my request to be a mod developer to Planet Minecraft.
UPDATE: The first being PRANK - HARDCORE which was released May 16th, 2012 (today)
Yes, I have a Steam Group: http://steamcommunity.com/groups/minecraftredstoners